com.ringcentral.platform.metrics.samples.DefaultSamplesProducer Maven / Gradle / Ivy

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package com.ringcentral.platform.metrics.samples;

import com.ringcentral.platform.metrics.labels.LabelValue;

import static java.lang.String.join;

public class DefaultSamplesProducer extends AbstractSamplesProducer<
    DefaultSample,
    DefaultSampleSpec,
    DefaultInstanceSampleSpec,
    InstanceSample> {

    public static final String DEFAULT_NAME_PARTS_DELIMITER = ".";
    public static final String DEFAULT_MEASURABLE_NAME_DELIMITER = ".";

    private final String namePartsDelimiter;
    private final String measurableNameDelimiter;

    public DefaultSamplesProducer() {
        this(
            DEFAULT_NAME_PARTS_DELIMITER,
            DEFAULT_MEASURABLE_NAME_DELIMITER);
    }

    public DefaultSamplesProducer(
        String namePartsDelimiter,
        String measurableNameDelimiter) {

        this.namePartsDelimiter = namePartsDelimiter;
        this.measurableNameDelimiter = measurableNameDelimiter;
    }

    @Override
    protected DefaultSample makeSample(
        DefaultSampleSpec spec,
        DefaultInstanceSampleSpec instanceSampleSpec,
        InstanceSample instanceSample) {

        StringBuilder nameBuilder = new StringBuilder(join(namePartsDelimiter, spec.name()));

        if (spec.hasLabelValues()) {
            for (LabelValue lv : spec.labelValues()) {
                nameBuilder.append(namePartsDelimiter).append(lv.value());
            }
        }

        if (spec.hasMeasurableName()) {
            nameBuilder.append(measurableNameDelimiter).append(spec.measurableName());
        }

        return new DefaultSample(
            nameBuilder.toString(),
            spec.value(),
            spec.type());
    }
}